import random
a = [i for i in 'abcdefghijklmnopqrstuvwxyz']
for i in range(100):
    print('{}.{}{}{}{}{}{}{}{}{}{}'.format(str(i+1).rjust(6,'0'),a[random.randint(0,25)],a[random.randint(0,25)],a[random.randint(0,25)],a[random.randint(0,25)],a[random.randint(0,25)],a[random.randint(0,25)],a[random.randint(0,25)],a[random.randint(0,25)],a[random.randint(0,25)],a[random.randint(0,25)]))


# 这里的语句太长了，Python规范中单行语句有长度限制，太长的话，可以拆成多行
